My DH bought Kaya for me right after she came out. I have changed my Kaya several times since then and the ties on the moccasins are not as fragile as they look. I have changed her from her Meet to her other outfits several times and I have had no problems! Also, if you pay attention to how the moccasins are tied when you take them off, it's not that hard to retie them. The little tab on the back helps pull them off and I have had no trouble putting them back on.
I will say I am an adult collector and a child would need help if they were younger than nine or ten I think.